Four categories of persons are enumerated according to their capacity to give useful
praise and criticism:
1. Those who criticise those deserving of criticism but who fail to praise those
deserving of praise, according to reality and at the appropriate juncture;
2. Those who praise those deserving of praise but fail to criticise those deserving
of criticism, according to reality and at the appropriate juncture;
3. Those who fail to criticise those deserving of criticism and who fail to praise
those deserving of praise, according to reality and at the appropriate juncture,
and;
4. Those who criticise those deserving of criticism and who praise those deserving
of praise, according to reality and at the appropriate juncture. At first Potaliya
prefers the third category saying his indifference is admirable but later agrees
with the Buddha that the fourth category is most admirable because his discrimination
of 'proper occasions' [kaala~n~nutaa] is admirable.